Note 11 - Fair Value Measurements (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2014

Dec. 31, 2013

Disclosure Text Block [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

June 30, 2014	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	565,163	$	-	$	-	$	565,163
Mortgage-backed securities		-		656,869		-		656,869
Collateralized mortgage obligations		-		46		-		46
Corporate debt securities		-		94,337		-		94,337
Mutual funds		5,833		-		-		5,833
Preferred stock of government sponsored entities		-		11,495		-		11,495
Other equity securities		6,246		-		-		6,246
Total securities available-for-sale		577,242		762,747		-		1,339,989
Warrants		-		-		21		21
Foreign exchange contracts		-		3,438		-		3,438
Total assets	$	577,242	$	766,185	$	21	$	1,343,448
Liabilities
Interest rate swaps	$	-	$	454	$	-	$	454
Foreign exchange contracts		-		1,594		-		1,594
Total liabilities	$	-	$	2,048	$	-	$	2,048

December 31, 2013	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	460,193	$	-	$	-	$	460,193
Mortgage-backed securities		-		952,815		-		952,815
Collateralized mortgage obligations		-		6,106		-		6,106
Asset-backed securities		-		123		-		123
Corporate debt securities		-		150,304		-		150,304
Mutual funds		5,724		-		-		5,724
Preferred stock of government sponsored entities		-		11,403		-		11,403
Total securities available-for-sale		465,917		1,120,751		-		1,586,668
Trading securities		-		4,936		-		4,936
Warrants		-		-		30		30
Foreign exchange contracts		-		6,182		-		6,182
Total assets	$	465,917	$	1,131,869	$	30	$	1,597,816
Liabilities
Foreign exchange contracts	$	-	$	6,140	$	-	$	6,140
Total liabilities	$	-	$	6,140	$	-	$	6,140

Fair Value Measurements, Nonrecurring [Table Text Block]

	June 30, 2014								Total Losses / (Gains)
	Fair Value Measurements Using						Total at		Three months ended					Six Months ended
	Level 1		Level 2		Level 3		Fair Value		June 30, 2014		June 30, 2013			June 30, 2014		June 30, 2013
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	4,983	$	4,983	$	17	$	-		$	17	$	463
Commercial mortgage loans		-		-		26,889		26,889		-		65			-		106
Construction loans		-		-		15,360		15,360		-		-			-		-
Residential mortgage loans and equity lines		-		-		13,156		13,156		-		31			-		220
Land loans		-		-		31		31		-		-			-		48
Total impaired loans		-		-		60,419		60,419		17		96			17		837
Other real estate owned (1)		-		15,483		10,637		26,120		142		(1,312	)		325		(1,378	)
Investments in venture capital		-		-		5,787		5,787		157		119			268		211
Total assets	$	-	$	15,483	$	76,843	$	92,326	$	316	$	(1,097	)	$	610	$	(330	)

	December 31, 2013								Total Losses / (Gains)
	Fair Value Measurements Using						Total at		Twelve months ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2013			December 31, 2012
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	7,584	$	7,584	$	5,731		$	-
Commercial mortgage loans		-		-		29,001		29,001		125			440
Construction- residential		-		-		500		500		-			-
Construction- other		-		-		15,363		15,363		-			65
Residential mortgage loans and equity lines		-		-		14,236		14,236		213			605
Land loans		-		-		29		29		-			162
Total impaired loans		-		-		66,713		66,713		6,069			1,272
Other real estate owned (1)		-		13,248		26,498		39,746		(3,134	)		10,904
Investments in venture capital		-		-		8,900		8,900		409			309
Equity investments		642		-		-		642		-			181
Total assets	$	642	$	13,248	$	102,111	$	116,001	$	3,344		$	12,666